diff options
Diffstat (limited to 'gcc/reginfo.c')
| -rw-r--r-- | gcc/reginfo.c | 42 |
1 files changed, 4 insertions, 38 deletions
diff --git a/gcc/reginfo.c b/gcc/reginfo.c index 9b77261..48a3f66 100644 --- a/gcc/reginfo.c +++ b/gcc/reginfo.c @@ -92,17 +92,6 @@ char global_regs[FIRST_PSEUDO_REGISTER]; /* Declaration for the global register. */ tree global_regs_decl[FIRST_PSEUDO_REGISTER]; -/* Same information as REGS_INVALIDATED_BY_CALL but in regset form to be used - in dataflow more conveniently. */ -regset regs_invalidated_by_call_regset; - -/* Same information as FIXED_REG_SET but in regset form. */ -regset fixed_reg_set_regset; - -/* The bitmap_obstack is used to hold some static variables that - should not be reset after each function is compiled. */ -static bitmap_obstack persistent_obstack; - /* Used to initialize reg_alloc_order. */ #ifdef REG_ALLOC_ORDER static int initial_reg_alloc_order[FIRST_PSEUDO_REGISTER] = REG_ALLOC_ORDER; @@ -364,17 +353,6 @@ init_reg_sets_1 (void) CLEAR_HARD_REG_SET (call_used_reg_set); CLEAR_HARD_REG_SET (call_fixed_reg_set); CLEAR_HARD_REG_SET (regs_invalidated_by_call); - if (!regs_invalidated_by_call_regset) - { - bitmap_obstack_initialize (&persistent_obstack); - regs_invalidated_by_call_regset = ALLOC_REG_SET (&persistent_obstack); - } - else - CLEAR_REG_SET (regs_invalidated_by_call_regset); - if (!fixed_reg_set_regset) - fixed_reg_set_regset = ALLOC_REG_SET (&persistent_obstack); - else - CLEAR_REG_SET (fixed_reg_set_regset); operand_reg_set &= accessible_reg_set; for (i = 0; i < FIRST_PSEUDO_REGISTER; i++) @@ -405,10 +383,7 @@ init_reg_sets_1 (void) #endif if (fixed_regs[i]) - { - SET_HARD_REG_BIT (fixed_reg_set, i); - SET_REGNO_REG_SET (fixed_reg_set_regset, i); - } + SET_HARD_REG_BIT (fixed_reg_set, i); if (call_used_regs[i]) SET_HARD_REG_BIT (call_used_reg_set, i); @@ -426,10 +401,7 @@ init_reg_sets_1 (void) if (i == STACK_POINTER_REGNUM) ; else if (global_regs[i]) - { - SET_HARD_REG_BIT (regs_invalidated_by_call, i); - SET_REGNO_REG_SET (regs_invalidated_by_call_regset, i); - } + SET_HARD_REG_BIT (regs_invalidated_by_call, i); else if (i == FRAME_POINTER_REGNUM) ; else if (!HARD_FRAME_POINTER_IS_FRAME_POINTER @@ -442,10 +414,7 @@ init_reg_sets_1 (void) && i == (unsigned) PIC_OFFSET_TABLE_REGNUM && fixed_regs[i]) ; else if (CALL_REALLY_USED_REGNO_P (i)) - { - SET_HARD_REG_BIT (regs_invalidated_by_call, i); - SET_REGNO_REG_SET (regs_invalidated_by_call_regset, i); - } + SET_HARD_REG_BIT (regs_invalidated_by_call, i); } call_fixed_reg_set = fixed_reg_set; @@ -800,10 +769,7 @@ globalize_reg (tree decl, int i) appropriate regs_invalidated_by_call bit, even if it's already set in fixed_regs. */ if (i != STACK_POINTER_REGNUM) - { - SET_HARD_REG_BIT (regs_invalidated_by_call, i); - SET_REGNO_REG_SET (regs_invalidated_by_call_regset, i); - } + SET_HARD_REG_BIT (regs_invalidated_by_call, i); /* If already fixed, nothing else to do. */ if (fixed_regs[i]) |